The Bosch Divar digital versatile recorder series are extremely compact, low profile units that combine advanced digital recording and multiplexing, not only saving space, but ensuring integrated functionality. The Divar has been designed with both operator and installer in mind, by making the unit easy to use and install, and maintenance-free. Several models are available without or with internal DVD writer that allows for local archiving on high-capacity, high-reliability optical media without the need for a PC. The Divar allows simultaneous recording and playback of video images. Overwrite protection of marked video clips prevents the loss of vital material.